UNIDENTIFIED
============

   SUN-5234

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 16-bit, ISA                            |
   |-------------------+----------------------------------------|
   | Size:             | Half-length, full-height card          |
   |-------------------+----------------------------------------|
   | Hard drive        | Two IDE (AT) Interface drives          |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   |                   | Up to seven SCSI devices               |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/U-Z/20366-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                    |  Location  |
   |-----------------------------------------------+------------|
   | 34-pin control cable connector - floppy drive |     J1     |
   |-----------------------------------------------+------------|
   | 40-pin IDE(AT) Interface connector            |     J4     |
   |-----------------------------------------------+------------|
   | 2-pin connector - Drive active LED (IDE)      |     J5     |
   |-----------------------------------------------+------------|
   | 50-pin SCSI connector - internal              |     J8     |
   |-----------------------------------------------+------------|
   | 50-pin SCSI connector - external              |     J9     |
   |-----------------------------------------------+------------|
   | 2-pin connector - Drive active LED (SCSI)     |    J12     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function             |   Location   |  Setting  |
   |---------------------------------+--------------+-----------|
   |>> | Floppy drive enabled        | J3/Jumper F  |   open    |
   |---+-----------------------------+--------------+-----------|
   |   | Floppy drive disabled       | J3/Jumper F  |  closed   |
   |---+-----------------------------+--------------+-----------|
   |>> | Hard drive enabled          | J3/Jumper H  |   open    |
   |---+-----------------------------+--------------+-----------|
   |   | Hard drive disabled         | J3/Jumper H  |  closed   |
   |---+-----------------------------+--------------+-----------|
   |>> | Zero Wait State disabled    |     J10      |   open    |
   |---+-----------------------------+--------------+-----------|
   |   | Zero Wait State enabled     |     J10      |  closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   INTERRUPT REQUST - J11                   |
   |------------------------------------------------------------|
   |IRQ|Jumper 1|Jumper |Jumper |Jumper |Jumper |Jumper |Jumper |
   |   |        |   2   |   3   |   4   |   5   |   6   |   7   |
   |---+--------+-------+-------+-------+-------+-------+-------|
   | 3 | closed | open  | open  | open  | open  | open  | open  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   | 5 |  open  |closed | open  | open  | open  | open  | open  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |10 |  open  | open  |closed | open  | open  | open  | open  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |11 |  open  | open  | open  |closed | open  | open  | open  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |12 |  open  | open  | open  | open  |closed | open  | open  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |14 |  open  | open  | open  | open  | open  |closed | open  |
   |---+--------+-------+-------+-------+-------+-------+-------|
   |15 |  open  | open  | open  | open  | open  | open  |closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     BIOS ADDRESS - J7                      |
   |------------------------------------------------------------|
   |     Address      |     Jumper SW0     |     Jumper SW1     |
   |------------------+--------------------+--------------------|
   |>> |     CA00     |        open        |        open        |
   |---+--------------+--------------------+--------------------|
   |   |     C800     |       closed       |       closed       |
   |---+--------------+--------------------+--------------------|
   |   |     CE00     |        open        |       closed       |
   |---+--------------+--------------------+--------------------|
   |   |     DE00     |       closed       |       closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   |   The functions of jumpers J2 and J6 are not documented.   |
   +------------------------------------------------------------+